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POS auxiliary Aerophotogrammetry Application Method and Error Analysis

Author: ZouYongPing
Tutor: LiuZuo
School: Xi'an University of Electronic Science and Technology
Course: Navigation,Guidance and Control
Keywords: POS ( positioning and orientation systems ) Auxiliary Aerophotogrammetry Differential GPS (DGPS) Inertial Measurement Unit (IMU) Digital camera calibration
CLC: P228.4
Type: Master's thesis
Year: 2010
Downloads: 489
Quote: 4
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Abstract


Traditional aerial photogrammetry require the use of ground control points and through the air three encryption solving the exterior orientation elements. Minimize or even get rid of the control point field dependence is an important research goal photogrammetry , so DGPS / IMU combination of location and orientation system was introduced POS Photogrammetry and Remote Sensing . POS auxiliary aerial photography aerial apparatus can directly give the exterior orientation elements of the moment of exposure , will significantly reduce or even completely eliminate the need for field control point requirements, improve efficiency, reduce costs, and gradually promote the domestic POS applications , will become the aerial photography standard configuration. But in the actual situation of different scale and terrain conditions , the measured precision how , or need field control points and control points of how to determine the number , type, distribution , these application methods are studied in depth . The main contents include: 1 , briefly addressed the DGPS, inertial measurement unit IMU and the combination of the two basic principles of POS . 2 , the current POS auxiliary Aerophotogrammetry main use: direct orientation method and auxiliary aerial triangulation mathematical models are analyzed and compared the conditions of use and accuracy assessment . 3 , the differential GPS base station layout scheme , base station joint measurement , eccentric component measurement , calibration field layout and requirements affecting flight POS auxiliary Aerophotogrammetry accuracy of the main application technology are discussed. And describes the camera and the IMU calibration . 4 to POSAV510 and IPAS for the object, in a number of auxiliary aerial photogrammetry POS application experiments , based on the measurement data were analyzed . Summary form a complete POS auxiliary Aerophotogrammetry processes. The topic for the promotion and application of POS provides a solid technical support for this work carried out and accumulated experience , the actual job with a strong guiding significance.

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
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